313133145 has 16 divisors (see below), whose sum is σ = 539552832. Its totient is φ = 154157760.

The previous prime is 313133123. The next prime is 313133159. The reversal of 313133145 is 541331313.

It is not a de Polignac number, because 313133145 - 2¹⁰ = 313132121 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802711 + ... + 803100.

It is an arithmetic number, because the mean of its divisors is an integer number (33722052).

Almost surely, 2^313133145 is an apocalyptic number.

It is an amenable number.

313133145 is a deficient number, since it is larger than the sum of its proper divisors (226419687).

313133145 is a wasteful number, since it uses less digits than its factorization.

313133145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605832.

The product of its digits is 1620, while the sum is 24.

The square root of 313133145 is about 17695.5685130487. The cubic root of 313133145 is about 679.0623936337.

Adding to 313133145 its reverse (541331313), we get a palindrome (854464458).

The spelling of 313133145 in words is "three hundred thirteen million, one hundred thirty-three thousand, one hundred forty-five".